Base | Representation |
---|---|
bin | 1111100110111… |
… | …10001000101011 |
3 | 100010101002201011 |
4 | 13303132020223 |
5 | 232004331131 |
6 | 20554204351 |
7 | 3146625466 |
oct | 763361053 |
9 | 303332634 |
10 | 130933291 |
11 | 679aa135 |
12 | 37a236b7 |
13 | 21184528 |
14 | 135642dd |
15 | b7650b1 |
hex | 7cde22b |
130933291 has 4 divisors (see below), whose sum is σ = 132204592. Its totient is φ = 129661992.
The previous prime is 130933279. The next prime is 130933381. The reversal of 130933291 is 192339031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 192339031 = 10037 ⋅19163.
It is a cyclic number.
It is not a de Polignac number, because 130933291 - 211 = 130931243 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130933241) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635496 + ... + 635701.
It is an arithmetic number, because the mean of its divisors is an integer number (33051148).
Almost surely, 2130933291 is an apocalyptic number.
130933291 is a deficient number, since it is larger than the sum of its proper divisors (1271301).
130933291 is a wasteful number, since it uses less digits than its factorization.
130933291 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1271300.
The product of its (nonzero) digits is 4374, while the sum is 31.
The square root of 130933291 is about 11442.6085749710. The cubic root of 130933291 is about 507.7890848962.
It can be divided in two parts, 13093 and 3291, that added together give a 14-th power (16384 = 214).
The spelling of 130933291 in words is "one hundred thirty million, nine hundred thirty-three thousand, two hundred ninety-one".
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